package demo1;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;

public class Demo {
    public static void main(String[] args) throws Exception{
        Person p1 = new Person();
        p1.sayHello();

        Class cls = Class.forName("demo1.Person");
        Person p2 = (Person) cls.newInstance();
        p2.sayHello();

        AnnotationConfigApplicationContext context
                = new AnnotationConfigApplicationContext("demo1");
        Person p3 = context.getBean(Person.class);
        p3.sayHello();
    }
}
